Which of the following does a cell require to transport substances against an electrochemical gradient?
a. ATP
b. Na +
c. K +
d. Phosphates
a. ATP
A cell requires ATP to transport substances against an electrochemical gradient.
Biology & Microbiology
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Which blood type is rare
?
a. A only b. B only c. AB d. O e. Both AB and O
Biology & Microbiology
What structures are found within bacterial cells?
A. ribosomes B. nuclei C. chloroplasts D. mitochondria
Biology & Microbiology
Which one of the following is NOT a possible reason to explain why organisms would stop exponential growth?
a) Accumulation of waste products b) Exhaustion of nutrients c) Lack of available space d) Bacteria becoming dormant
Biology & Microbiology
The entire chemical reactions take place in a cell is
a. digestion b. oxidation c. metabolism
Biology & Microbiology